Strong influence of a magnetic layer on the critical current of Nb bridge in finite magnetic fields due to surface barrier effect

Autor:	Vodolazov, D. Y., Gribkov, B. A., Klimov, A. Yu., Rogov, V. V., Vdovichev, S. N.
Rok vydání:	2008
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
DOI:	10.1063/1.3030983
Popis:	We measured the critical current of the bilayer Nb/Co in the applied magnetic field. When the magnetic field was tilted to the axis which was perpendicular to the plane of the bilayer we observed a large difference in critical currents flowing in opposite directions. We found that the largest critical current of the bilayer exceeded the critical current of the superconductor without Co layer in a wide range of the tilted magnetic fields. The theory which takes into account the surface barrier effect for vortex entry and magnetic field of the magnetic layer gave a quantitative explanation of our experimental results. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0812.4608 Zobrazit plný text záznamu View this record from Arxiv